Good luck studying glassfrogs. Even the largest ones are barely two inches long, they live only along secluded streams inside dense jungles, and their translucent green skin blends perfectly with the leaves they like to hide under. And just to make life even harder for biologists, some of them have completely transparent skin.

When a ballerina pirouettes, twirling a full revolution, she looks just as she did when she started. But for electrons and other subatomic particles, which follow the rules of quantum theory, that’s not necessarily so. When an electron moves around a closed path, ending up where it began, its physical state may or may not be the same as when it left.

Scientists have created the world’s thinnest hologram that can be seen without 3D goggles and may be integrated into everyday electronics such as smartphones, computers, and TVs.

It’s rare for animals to engage in what’s called “coordinated hunting” — but that’s exactly what Cuban boa snakes do, according to new research published in the journal Animal Behavior and Cognition.

Lighter-toned bedrock that surrounds fractures and comprises high concentrations of silica—called “halos”—has been found in Gale crater on Mars, indicating that the planet had liquid water much longer than previously believed. The new finding is reported in a paper published today in Geophysical Research Letters, a journal of the American Geophysical Union.

NASA has visited some awfully impressive places in the past 60 years, so it’s something of a wonder that the space agency hasn’t found its way to the sun by now. The New Horizons probe, which flew by Pluto in the summer of 2015, is now 3.5 billion miles (5.6 billion km) away; Voyager 1, launched in 1977, has left the solar system entirely, cruising through space at a remove of 11.7 billion miles (18.9 billion km) from Earth.

In a study published in the medical journal Gastroenterology, researchers of the Farncombe Family Digestive Health Research Institute found that twice as many adults with irritable bowel syndrome (IBS) reported improvements from co-existing depression when they took a specific probiotic than adults with IBS who took a placebo.

The Paris Accord’s overriding goal is to limit global warming to less than 2 degrees Celsius above pre-industrial levels by 2100. And if possible, the accord would like to “pursue efforts to limit the temperature increase to 1.5 °C above pre-industrial levels.” To do that, countries like the U.S. would have to dramatically reduce their carbon dioxide emissions and still remain competitive.

Ginger, as a supplement or an ingredient in food and drink, may protect against obesity and chronic disease, according to a new research review. While experts can’t yet recommend a specific dosage for preventive purposes, they say that consuming more of the pungent spice is smart for several reasons.

That the scientific method and zoos are sexist, that menstrual periods are a social construct, and that Pilates teaches white privilege are just a few subjects of gender studies papers that inspired the biggest hoax since the Sokal affair.

On Aug. 21, the continental U.S. will be treated to a total solar eclipse that will dazzle the nation as it progresses from coast to coast, starting in Oregon and ending in South Carolina.

As President Trump weighs whether to withdraw from the Paris Agreement on climate change, some have tried to present a “business case” for why the U.S. should stay in. An economic windfall would come with the early and aggressive investment in alternative energy that the accord mandates, or so the argument goes. The Paris Agreement’s backers have told an incomplete story and reached the wrong conclusion.

The Amazon forest stores about half of the global tropical forest carbon and accounts for about a quarter of carbon absorption from the atmosphere by global forests each year. As a result, large losses of Amazonian forest cover could make global climate change worse.

Evidence of a glacier disappearing isn’t evidence that man is causing it, it isn’t evidence that CO2 is causing it or even evidence that it has been warming. Glaciers disappear for all sorts of reasons. The Mt. Kilimanjaro glacier is disappearing and it has nothing to to with CO2 or warming, and everything to do with atmospheric humidity and wind currents.

Researchers report that nepetalactone, the essential oil in catnip that gives the plant its characteristic odor, is about ten times more effective at repelling mosquitoes than DEET — the compound used in most commercial insect repellents.

East European EU states are mounting a behind-the-scenes revolt against the Paris Agreement, blocking key measures needed to deliver the pledge that they signed up to 18 months ago.